Formwork panel

ABSTRACT

A formwork panel includes a heat insulating material forming one side of the formwork panel, and a support forming the other side of the formwork panel and detachably coupled to the heat insulating material, in which the size of the support corresponds to the size of the heat insulating material, and the support includes an edge part surrounding the opening part and having no opening, and the support includes an opening part having at least one opening such that, in a structure in which the support and the heat insulating material are coupled to each other, the heat insulating material is exposed to the outside.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of International Patent Application No. PCT/KR2021/010083, filed on Aug. 2, 2021, which is based upon and claims the benefit of priority to Korean Patent Application No. 10-2020-0154529, filed on Nov. 18, 2020. The disclosures of the above-listed applications are hereby incorporated by reference herein in their entirety.

TECHNICAL FIELD

The present disclosure relates to a formwork panel, and more particularly, to a formwork panel including a heat insulating material and a detachable support.

BACKGROUND

At present, the reinforced concrete construction industry is a manpower-intensive industry that cannot be replaced with automated or mechanized processes, in which almost all processes must rely on manpower and manual labor. Reinforced concrete construction is largely divided into frame construction and finishing work. The frame construction is carried out in the order of foundation surveying and layout, reinforcement arrangement, formwork (form) arrangement, casting, and dismantling.

When the reinforcement work of the walls and pillars is completed to some extent, the formwork arrangement work begins. Specifically, in the formwork arrangement work, the formworks for the foundation are placed around the circumference of the reinforcing bars according to the shape of the building. For the construction of a reinforced concrete building, the formwork or form plays a role of holding the shape of the poured concrete that is not yet hardened. Formworks are classified into wooden formworks, steel formworks, aluminum formworks, insulated concrete form (ICF), and the like according to the material, and classified into euro forms, gang forms, and the like according to the standard. In Korea, the standardized formworks called euro forms are used for most walls, except for parts with small areas or curves or bends.

Meanwhile, for the building construction, the unit cost of the overall project is dependent on how quickly the frame construction is done. This is because the frame construction accounts for a large portion of the construction cost, and the project period is directly related to an expense due to the nature of the construction industry that is heavily dependent on external capital. Therefore, the formworks used for the formwork arrangement of the frame construction are continuously improved from the existing steel forms to aluminum forms, ICFs, and so on.

SUMMARY

In order to solve one or more problems (e.g., the problems described above and/or other problems not explicitly described herein), the present disclosure provides a lightweight formwork panel including a support having at least one opening and detachably coupled to a heat insulating material, so as to quickly construct a concrete wall at low cost.

A formwork panel may include a heat insulating material forming one side of the formwork panel, and a support forming the other side of the formwork panel and detachably coupled to the heat insulating material, in which the size of the support may correspond to the size of the heat insulating material, the support may include an edge part surrounding the opening part and having no opening, and the support may include an opening part having at least one opening such that, in a structure in which the support and the heat insulating material are coupled to each other, the heat insulating material is exposed to the outside.

The opening part may include a mesh structure, a perforated structure, or a truss structure.

In a structure in which the support and the heat insulating material are coupled to each other, the edge part may support the heat insulating material.

A method for constructing a concrete wall using formwork panels may include placing a first formwork panel, including a heat insulating material forming one side, and a support forming the other side and detachably coupled to the heat insulating material, placing a second formwork panel having the same structure as the first formwork panel apart from the first formwork panel by a distance corresponding to a space where concrete is poured with the heat insulating material of the first formwork panel and the heat insulating material of the second formwork panel facing each other, pouring concrete into the space, curing the poured concrete, and separating the support from the first formwork panel and the second formwork panel, the support may include an opening part having at least one opening such that, in a structure in which the support and the heat insulating material are coupled to each other, the heat insulating material is exposed to the outside.

The method may further include placing a third formwork panel having the same structure as the first formwork panel on a side surface of the first formwork panel, and placing a fourth formwork panel having the same structure as the first formwork panel on a side surface of the second formwork panel such that a heat insulating material of the third formwork panel and a heat insulating material of the fourth formwork panel face each other.

According to various examples of the present disclosure, since a portion in direct contact with the concrete to be poured is the heat insulating material, unlike the related formwork, the support does not have to have a flat surface form. Therefore, since the support may have at least one opening formed therein, it is possible to reduce the weight compared to the related formwork, thereby reducing the construction time and construction cost of the concrete wall.

In addition, according to various examples of the present disclosure, since the support may be formed with the related euro form and the opening part formed therein, it is possible to shorten the construction time of the concrete wall by using the standardized formwork panels in the form of euro form.

Further, according to various examples of the present disclosure, since the supports separated from the formwork panels can be recycled for use in the assembly of the formwork panels for the construction of the next concrete wall, the manufacturing cost of the formwork panel can be reduced.

The effects of the present disclosure are not limited to the effects described above, and other effects that are not mentioned above can be clearly understood to those skilled in the art based on the description provided below.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the present disclosure will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:

FIG. 1 is an exploded perspective view of a formwork panel;

FIG. 2 is a perspective view illustrating a first formwork panel and a second formwork panel placed to face each other to construct a concrete wall;

FIG. 3 is a perspective view illustrating an arrangement of a plurality of formwork panels;

FIG. 4 is a perspective view illustrating a support separated from a heat insulating material adhered to concrete;

FIG. 5 is a perspective view of a concrete wall in a state in which construction is completed; and

FIG. 6 is a flow chart illustrating a method for constructing a concrete wall using formwork panels.

DETAILED DESCRIPTION

Hereinafter, example details for the practice of the present disclosure will be described in detail with reference to the accompanying drawings. However, in the following description, detailed descriptions of well-known functions or configurations will be omitted if it may make the subject matter of the present disclosure rather unclear.

In the accompanying drawings, the same or corresponding components are assigned the same reference numerals. In addition, in the following description of various examples, duplicate descriptions of the same or corresponding components may be omitted. However, even if descriptions of components are omitted, it is not intended that such components are not included in any example.

The terms used in the present disclosure will be briefly described prior to describing the disclosed example(s) in detail. The terms used herein have been selected as general terms which are widely used at present in consideration of the functions of the present disclosure, and this may be altered according to the intent of an operator skilled in the art, related practice, or introduction of new technology. In addition, in specific cases, certain terms may be arbitrarily selected by the applicant, and the meaning of the terms will be described in detail in a corresponding description of the example(s). Therefore, the terms used in the present disclosure should be defined based on the meaning of the terms and the overall content of the present disclosure rather than a simple name of each of the terms.

In the present disclosure, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates the singular forms. Further, the plural forms are intended to include the singular forms as well, unless the context clearly indicates the plural forms.

In the present disclosure, when a portion is stated as “comprising (including)” a component, unless specified to the contrary, it intends to mean that the portion may additionally comprise (or include or have) another component, rather than excluding the same.

In the present disclosure, it is to be noted that the upper direction of the drawing may be referred to as “upper portion” or “upper side” of the configuration shown in the drawing, and the lower direction may be referred to as “lower portion” or “lower side”. In addition, in the drawings, a portion between the upper and lower portions of the configuration shown in the drawings, or a portion other than the upper and lower portions may be referred to as “side portion” or “side”. Relative terms such as “upper portion” and “upper side” may be used to describe the relationship between components shown in the drawings, and the present disclosure is not limited by these terms.

In the present disclosure, a direction toward the inner space of a structure may be referred to as “inside”, and a direction projecting into the open outer space may be referred to as “outside”. Relative terms such as “inside” and “outside” may be used to describe the relationship between components shown in the drawings, and the present disclosure is not limited by these terms.

As used herein, the statement “A and/or B” means A, or B, or A and B.

Throughout the description, when a portion is stated as being connected to another portion, it intends to include not only an example in which the portions are directly connected, but also an example in which the portions are connected while having another component disposed therebetween.

Advantages and features of the disclosed examples and methods of accomplishing the same will be apparent by referring to examples described below in connection with the accompanying drawings. However, the present disclosure is not limited to the examples disclosed below, and may be implemented in various forms different from each other, and the examples are merely provided to make the present disclosure complete, and to fully disclose the scope of the disclosure to those skilled in the art to which the present disclosure pertains.

FIG. 1 is an exploded perspective view of a formwork panel 100. As illustrated, the formwork panel 100 may correspond to a part of the formwork that is poured with the concrete to construct a concrete wall. The formwork panel 100 may be formed in a flat and wide shape to correspond to a concrete wall. Specifically, the formwork panel 100 may correspond to a plate shape having a sufficient thickness to support the weight of the concrete to be poured.

The formwork panel 100 may include a heat insulating material 110 and a support 120. In this case, the heat insulating material 110 may form one surface of the formwork panel 100, and the support 120 may form the other surface of the formwork panel 100. The heat insulating material 110 forming one surface of the formwork panel 100 may be in contact with the concrete.

The formwork panel 100 may be manufactured in conformity with standards. For example, the formwork panel 100 may have a structure in which the support 120 having an opening part formed therein is coupled to the heat insulating material 110. Therefore, the concrete wall may be constructed quickly and accurately using the standardized formwork panel 100.

The formwork panel 100 may include a hole into which a wedge pin for coupling with an adjacent formwork panel is inserted. Specifically, holes (not illustrated) having a certain size may be drilled at intervals in an edge part 122 of the support 120 of the formwork panel 100.

The heat insulating material 110 may come into direct contact with the concrete from one side during the pouring of the concrete. Therefore, the heat insulating material 110 may be formed in the form of a flat surface such that the poured concrete is cured in the shape of a surface. In addition, the heat insulating material 110 may form the outer surface of the concrete wall by coupling with the concrete during the process of concrete pouring and curing. Therefore, the heat insulating material 110 may serve to block heat from escaping from inside the concrete structure to the outside or to block heat from being transferred from the outside to the inside.

The heat insulating material 110 may be an inorganic heat insulating material, an organic heat insulating material, or a combination thereof. For example, if the heat insulating material 110 is an inorganic heat insulating material, it may be glass wool or mineral wool, and if the heat insulating material 110 is an organic heat insulating material, it may be a bead heat insulating material, an extrusion heat insulating material, water-based flexible foam, or hard urethane.

The support 120 may have a size corresponding to the heat insulating material 110 and may be formed to contact the heat insulating material 110 at one side. In a structure in which the support 120 and the heat insulating material 110 are coupled to each other, the support 120 may support the heat insulating material 110. The support 120 may be formed of a robust structure that can hold up weight of the heat insulating material 110 and the concrete to be poured. For example, the support 120 may be formed in a mesh structure, a perforated structure, or a truss structure. In addition, the support 120 may be made of a material having a certain strength or higher. For example, the support 120 may be made of coated plywood, aluminum, steel, or an alloy.

The support 120 may be detachable from the heat insulating material 110. Specifically, in a stage before the concrete wall is constructed, the support 120 is in the state of being coupled to the heat insulating material 110 and forming a part of the formwork panel 100, and in a stage in which the construction of the concrete wall is finished, the support 120 is separated from the heat insulating material 110 so as to be recycled as a part of the formwork panel 100 used for the next construction of the concrete wall. The support 120 may be detachably coupled to the heat insulating material 110. For example, the support 120 may be applied with an adhesive on one surface thereof so as to be attached to the heat insulating material 110. The support 120 attached to the heat insulating material 110 may be separated from the heat insulating material 110 by the application of a certain amount of external force or more.

In the formwork panel 100 configured as described above, the heat insulating material 110 is the component that comes into direct contact with the concrete to be poured, and therefore, unlike a related formwork, the support 120 may not need to have a flat surface shape. Accordingly, the support 120 may be formed in many other structures instead of the form of a flat surface. For example, as illustrated, an opening part 124 having at least one opening 126 may be formed in the support 120. Therefore, compared to a related formwork weighing about 30 kg, the support 120 according to the present disclosure may be reduced in weight to less than 10 kg. As the support 120 can be lightweighted, it is possible to shorten the transportation and installation time of the formwork panels 100, thereby shortening the construction time of the concrete wall.

The support 120 may include the edge part 122 and the opening part 124. The edge part 122 may be connected to the opening part 124 and formed so as to surround the circumference of the opening part 124. In the structure in which the support 120 and the heat insulating material 110 are coupled to each other, the edge part 122 may support the heat insulating material 110. The edge part 122 may be configured in such a form that a plurality of formwork panels 100 may be easily placed in contact with each other. For example, the edge parts 122 may be configured in such a form that they can be assembled with each other. An opening may not be formed in the edge part 122.

The opening part 124 may be formed to have at least one opening 126. Specifically, in a structure in which the support 120 and the heat insulating material 110 are coupled to each other, at least one opening 126 may be formed in the opening part 124 such that a portion of the heat insulating material 110 in contact with the support 120 is exposed to the outside. The opening part 124 may be formed by drilling at least one or more openings 126 in the support that may be in the form of a flat surface. By forming the opening 126, the opening part 124 may be formed in a mesh structure, a perforated structure, or a truss structure.

As the opening part 124 is formed in the support 120, a contact area in which the support 120 comes into contact with the heat insulating material 110 may be reduced compared to a support having a flat surface. Therefore, the support 120 can be easily separated from the heat insulating material 110 by the application of a certain amount of external force or more at the stage in which the construction of the concrete wall is finished, and additionally, since the adhesive remaining on the surface of the heat insulating material 110 can be minimized after the support 120 is separated, it is possible to save time required for removing the adhesive.

FIG. 2 is a perspective view illustrating a first formwork panel 210 and a second formwork panel 220 placed to face each other to construct a concrete wall. The first formwork panel 210 and the second formwork panel 220 may correspond to the formwork panel 100 illustrated in FIG. 1 .

As illustrated, the first formwork panel 210 has a form in which a first heat insulating material 212 and a first support 214 are coupled to each other, and the first support 214 may include a first edge part 216 and a first opening part 218. Meanwhile, the second formwork panel 220 having the same structure as the first formwork panel 210 has a form in which a second heat insulating material 222 and a second support 224 are coupled to each other, and the second support 224 may include a second edge part 226 and a second opening part (not illustrated).

The first formwork panel 210 and the second formwork panel 220 may correspond to a part of the formwork that is poured with the concrete to construct a concrete wall. To install the formwork, the first formwork panel 210 and the second formwork panel 220 may be placed to face each other on the ground. Specifically, the second formwork panel 220 may be spaced apart from the first formwork panel 210 by a distance corresponding to the space where the concrete is poured. In this case, as illustrated, the heat insulating material 212 of the first formwork panel 210 and the heat insulating material 222 of the second formwork panel 200 may face each other.

In the state in which the first formwork panel 210 and the second formwork panel 220 are placed to face each other on the ground, a web (not shown) may be connected between the heat insulating material 212 of the first formwork panel 210 and the heat insulating material 222 of the second formwork panel 200. Specifically, the web may be connected at one end to the heat insulating material 212 of the first formwork panel 210 and connected at the other end to the heat insulating material 222 of the second formwork panel 200. Therefore, the web may serve to temporarily support the first formwork panel 210 and the second formwork panel 220 in the position of facing each other until concrete is poured.

FIG. 3 is a perspective view illustrating an arrangement of a plurality of formwork panels. The first to sixth formwork panels 210, 220, 310, 320, 330, and 340 may correspond to the formwork panel 100 illustrated in FIG. 1 .

As illustrated in FIGS. 2 and 3 , the first and second formwork panels 210 and 220 may be placed to face each other on the ground and spaced apart from each other by a distance corresponding to the space where the concrete is poured. A new formwork panel may be placed in contact with the upper or side surfaces of the first formwork panel 210 and the second formwork panel 220 depending on the shape of the concrete wall to be constructed. For example, as illustrated in FIG. 3 , the third formwork panel 310 may be placed on the side surface of the first formwork panel 210, and the fourth formwork panel 320 may be placed on the side surface of the second formwork panel 220. In this case, a heat insulating material 312 of the third formwork panel 310 and a heat insulating material 322 of the fourth formwork panel 320 may be placed to face each other.

In the same manner, the fifth formwork panel 330 and the sixth formwork panel 340 may be placed on the upper surfaces of the first formwork panel 210 and the second formwork panel 220, respectively. The third to the sixth formwork panel 310 to 340 may have the same structure as the first formwork panel 210.

FIG. 4 is a perspective view illustrating the support 214 separated from the heat insulating material 212 adhered to concrete 410.

As illustrated in FIGS. 3 and 4 , a plurality of formwork panels may be spaced apart from each other by a distance corresponding to the space where the concrete 410 is poured. The concrete 410 may be poured and cured in the space formed between the plurality of formwork panels. As the poured concrete 410 is cured, a plurality of heat insulating materials (e.g., reference numerals 212 and 222 in FIG. 4 ) in direct contact with the concrete 410 on one side may be adhered to the concrete.

If the plurality of heat insulating materials are adhered to the concrete, the plurality of supports (e.g., reference numerals 214, 224, and 314 in FIG. 4 ) supporting the concrete and heat insulating material may be separated from the plurality of formwork panels. For example, as illustrated in FIG. 4 , the first support 214 may be separated from the first heat insulating material 212 by the application of a certain amount of external force or more. The separated plurality of supports may be recycled as part of the formwork panel 100 used in the construction of the next concrete wall.

FIG. 5 is a perspective view of a concrete wall 500 in a state in which construction is completed. As illustrated, the concrete wall 500 may include a plurality of heat insulating materials (e.g., reference numerals 212, 222, and 312 in FIG. 5 ) and the concrete 410. The construction of the concrete wall 500 may be completed by separating all of the plurality of supports from the plurality of formwork panels and removing the adhesive from the plurality of heat insulating materials.

FIG. 6 is a flow chart illustrating a method 600 for constructing a concrete wall using the formwork panels. The method 600 for constructing a concrete wall may be initiated by placing a first formwork panel including a heat insulating material and a support, at 5610. Specifically, the first formwork panel including the heat insulating material and the support detachably coupled to the heat insulating material may be placed. The first formwork panel may correspond to the formwork panel 100 in FIG. 1 .

A second formwork panel having the same structure as the first formwork panel may be placed at a distance apart from the first formwork panel, at 5620. Specifically, the second formwork panel may be placed such that the heat insulating material of the second formwork panel and the heat insulating material of the first formwork panel face each other, and may be spaced apart from the first formwork panel by a distance corresponding to the space where the concrete is poured.

A third formwork panel having the same structure as the first formwork panel may be placed on the side surface of the first formwork panel, and a fourth formwork panel having the same structure as the first formwork panel may be placed on the side surface of the second formwork panel, at 5630. In this case, the heat insulating material of the third formwork panel and the heat insulating material of the fourth formwork panel may be placed to face each other.

Meanwhile, fifth and sixth formwork panels having the same structure as the first formwork panel may be placed in contact with the upper surfaces of the first and second formwork panels, respectively. In this way, by placing a plurality of formwork panels in succession and in contact with each other with reference to the first formwork panel, the formwork to be poured with the concrete may be completed.

If a plurality of formwork panels are placed in succession and the formwork to be poured with the concrete is completed, concrete may be poured into the spaced defined between the plurality of formwork panels in place, at 5640. The poured concrete may be cured in the space described above, at 5650.

All of the plurality of supports may be separated from the plurality of formwork panels, at 5660. Specifically, since the support is detachably coupled to the heat insulating material in the formwork panel, it is possible to remove a plurality of supports from the heat insulating materials of the plurality of formwork panels by applying a certain amount of external force to the supports. In this case, the separated plurality of supports may be recycled for use in the manufacture of the formwork panels for the next construction.

Certain examples of the present invention have been described above for purposes of illustration only, and those skilled in the art with ordinary knowledge of the present disclosure will be able to make various modifications, changes and additions within the spirit and scope of the present disclosure, and such modifications, changes and additions should be construed to be included in a scope of the claims.

It should be understood that those of ordinary skill in the art to which the present disclosure pertains can make various substitutions, modifications and changes without departing from the technical spirit of the present disclosure, and thus, the present disclosure is not limited by the embodiments described above and the accompanying drawings. 

1. A formwork panel comprising: a heat insulating material forming one side of the formwork panel; and a support forming the other side of the formwork panel and detachably coupled to the heat insulating material, wherein a size of the support corresponds to a size of the heat insulating material, the support includes an opening part having at least one opening such that, in a structure in which the support and the heat insulating material are coupled to each other, the heat insulating material is exposed to the outside, and the support includes an edge part surrounding the opening part and having no opening.
 2. The formwork panel according to claim 1, wherein the opening part includes a mesh structure, a perforated structure or a truss structure.
 3. The formwork panel according to claim 2, wherein, in the structure in which the support and the heat insulating material are coupled to each other, the edge part supports the heat insulating material.
 4. A method for constructing a concrete wall using a formwork panel comprising: placing a first formwork panel, the first forming panel including a heat insulating material forming one side, and a support forming the other side and detachably coupled to the heat insulating material; placing a second formwork panel having the same structure as the first formwork panel apart from the first formwork panel by a distance corresponding to a space where concrete is poured, with the heat insulating material of the first formwork panel and the heat insulating material of the second formwork panel facing each other; pouring concrete into the space; curing the poured concrete; and separating the supports from the first formwork panel and the second formwork panel, wherein the support includes an opening part having at least one opening such that, in a structure in which the support and the heat insulating material are coupled to each other, the heat insulating material is exposed to the outside.
 5. The method according to claim 4, further comprising: placing a third formwork panel having the same structure as the first formwork panel on a side surface of the first formwork panel; and placing a fourth formwork panel having the same structure as the first formwork panel on a side surface of the second formwork panel such that a heat insulating material of the third formwork panel and a heat insulating material of the fourth formwork panel face each other. 